| 1 | /* A.out "format 1" file handling code for BFD. |
| 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, |
| 3 | 2001, 2002, 2003, 2004 |
| 4 | Free Software Foundation, Inc. |
| 5 | Written by Cygnus Support. |
| 6 | |
| 7 | This file is part of BFD, the Binary File Descriptor library. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 22 | |
| 23 | #include "bfd.h" |
| 24 | #include "sysdep.h" |
| 25 | #include "libbfd.h" |
| 26 | |
| 27 | #include "aout/sun4.h" |
| 28 | #include "libaout.h" /* BFD a.out internal data structures */ |
| 29 | |
| 30 | #include "aout/aout64.h" |
| 31 | #include "aout/stab_gnu.h" |
| 32 | #include "aout/ar.h" |
| 33 | |
| 34 | /* This is needed to reject a NewsOS file, e.g. in |
| 35 | gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com> |
| 36 | I needed to add M_UNKNOWN to recognize a 68000 object, so this will |
| 37 | probably no longer reject a NewsOS object. <ian@cygnus.com>. */ |
| 38 | #ifndef MACHTYPE_OK |
| 39 | #define MACHTYPE_OK(mtype) \ |
| 40 | (((mtype) == M_SPARC && bfd_lookup_arch (bfd_arch_sparc, 0) != NULL) \ |
| 41 | || (((mtype) == M_UNKNOWN || (mtype) == M_68010 || (mtype) == M_68020) \ |
| 42 | && bfd_lookup_arch (bfd_arch_m68k, 0) != NULL)) |
| 43 | #endif |
| 44 | |
| 45 | /* |
| 46 | The file @code{aoutf1.h} contains the code for BFD's |
| 47 | a.out back end. Control over the generated back end is given by these |
| 48 | two preprocessor names: |
| 49 | @table @code |
| 50 | @item ARCH_SIZE |
| 51 | This value should be either 32 or 64, depending upon the size of an |
| 52 | int in the target format. It changes the sizes of the structs which |
| 53 | perform the memory/disk mapping of structures. |
| 54 | |
| 55 | The 64 bit backend may only be used if the host compiler supports 64 |
| 56 | ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}. |
| 57 | With this name defined, @emph{all} bfd operations are performed with 64bit |
| 58 | arithmetic, not just those to a 64bit target. |
| 59 | |
| 60 | @item TARGETNAME |
| 61 | The name put into the target vector. |
| 62 | @item |
| 63 | @end table |
| 64 | |
| 65 | */ |
| 66 | |
| 67 | /*SUPPRESS558*/ |
| 68 | /*SUPPRESS529*/ |
| 69 | |
| 70 | #if ARCH_SIZE == 64 |
| 71 | #define sunos_set_arch_mach sunos_64_set_arch_mach |
| 72 | #define sunos_write_object_contents aout_64_sunos4_write_object_contents |
| 73 | #else |
| 74 | #define sunos_set_arch_mach sunos_32_set_arch_mach |
| 75 | #define sunos_write_object_contents aout_32_sunos4_write_object_contents |
| 76 | #endif |
| 77 | |
| 78 | static bfd_boolean sunos_merge_private_bfd_data |
| 79 | PARAMS ((bfd *, bfd *)); |
| 80 | static void sunos_set_arch_mach |
| 81 | PARAMS ((bfd *, enum machine_type)); |
| 82 | static void choose_reloc_size |
| 83 | PARAMS ((bfd *)); |
| 84 | static bfd_boolean sunos_write_object_contents |
| 85 | PARAMS ((bfd *)); |
| 86 | static const bfd_target *sunos4_core_file_p |
| 87 | PARAMS ((bfd *)); |
| 88 | static char *sunos4_core_file_failing_command |
| 89 | PARAMS ((bfd *)); |
| 90 | static int sunos4_core_file_failing_signal |
| 91 | PARAMS ((bfd *)); |
| 92 | static bfd_boolean sunos4_core_file_matches_executable_p |
| 93 | PARAMS ((bfd *, bfd *)); |
| 94 | static bfd_boolean sunos4_set_sizes |
| 95 | PARAMS ((bfd *)); |
| 96 | |
| 97 | /* Merge backend data into the output file. |
| 98 | This is necessary on sparclet-aout where we want the resultant machine |
| 99 | number to be M_SPARCLET if any input file is M_SPARCLET. */ |
| 100 | |
| 101 | #define MY_bfd_merge_private_bfd_data sunos_merge_private_bfd_data |
| 102 | |
| 103 | static bfd_boolean |
| 104 | sunos_merge_private_bfd_data (ibfd, obfd) |
| 105 | bfd *ibfd, *obfd; |
| 106 | { |
| 107 | if (bfd_get_flavour (ibfd) != bfd_target_aout_flavour |
| 108 | || bfd_get_flavour (obfd) != bfd_target_aout_flavour) |
| 109 | return TRUE; |
| 110 | |
| 111 | if (bfd_get_arch (obfd) == bfd_arch_sparc) |
| 112 | { |
| 113 | if (bfd_get_mach (obfd) < bfd_get_mach (ibfd)) |
| 114 | bfd_set_arch_mach (obfd, bfd_arch_sparc, bfd_get_mach (ibfd)); |
| 115 | } |
| 116 | |
| 117 | return TRUE; |
| 118 | } |
| 119 | |
| 120 | /* This is either sunos_32_set_arch_mach or sunos_64_set_arch_mach, |
| 121 | depending upon ARCH_SIZE. */ |
| 122 | |
| 123 | static void |
| 124 | sunos_set_arch_mach (abfd, machtype) |
| 125 | bfd *abfd; |
| 126 | enum machine_type machtype; |
| 127 | { |
| 128 | /* Determine the architecture and machine type of the object file. */ |
| 129 | enum bfd_architecture arch; |
| 130 | unsigned long machine; |
| 131 | switch (machtype) |
| 132 | { |
| 133 | |
| 134 | case M_UNKNOWN: |
| 135 | /* Some Sun3s make magic numbers without cpu types in them, so |
| 136 | we'll default to the 68000. */ |
| 137 | arch = bfd_arch_m68k; |
| 138 | machine = bfd_mach_m68000; |
| 139 | break; |
| 140 | |
| 141 | case M_68010: |
| 142 | case M_HP200: |
| 143 | arch = bfd_arch_m68k; |
| 144 | machine = bfd_mach_m68010; |
| 145 | break; |
| 146 | |
| 147 | case M_68020: |
| 148 | case M_HP300: |
| 149 | arch = bfd_arch_m68k; |
| 150 | machine = bfd_mach_m68020; |
| 151 | break; |
| 152 | |
| 153 | case M_SPARC: |
| 154 | arch = bfd_arch_sparc; |
| 155 | machine = 0; |
| 156 | break; |
| 157 | |
| 158 | case M_SPARCLET: |
| 159 | arch = bfd_arch_sparc; |
| 160 | machine = bfd_mach_sparc_sparclet; |
| 161 | break; |
| 162 | |
| 163 | case M_SPARCLITE_LE: |
| 164 | arch = bfd_arch_sparc; |
| 165 | machine = bfd_mach_sparc_sparclite_le; |
| 166 | break; |
| 167 | |
| 168 | case M_386: |
| 169 | case M_386_DYNIX: |
| 170 | arch = bfd_arch_i386; |
| 171 | machine = 0; |
| 172 | break; |
| 173 | |
| 174 | case M_29K: |
| 175 | arch = bfd_arch_a29k; |
| 176 | machine = 0; |
| 177 | break; |
| 178 | |
| 179 | case M_HPUX: |
| 180 | arch = bfd_arch_m68k; |
| 181 | machine = 0; |
| 182 | break; |
| 183 | |
| 184 | default: |
| 185 | arch = bfd_arch_obscure; |
| 186 | machine = 0; |
| 187 | break; |
| 188 | } |
| 189 | bfd_set_arch_mach (abfd, arch, machine); |
| 190 | } |
| 191 | |
| 192 | #define SET_ARCH_MACH(ABFD, EXEC) \ |
| 193 | NAME(sunos,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \ |
| 194 | choose_reloc_size(ABFD); |
| 195 | |
| 196 | /* Determine the size of a relocation entry, based on the architecture */ |
| 197 | static void |
| 198 | choose_reloc_size (abfd) |
| 199 | bfd *abfd; |
| 200 | { |
| 201 | switch (bfd_get_arch (abfd)) |
| 202 | { |
| 203 | case bfd_arch_sparc: |
| 204 | case bfd_arch_a29k: |
| 205 | obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; |
| 206 | break; |
| 207 | default: |
| 208 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; |
| 209 | break; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | /* Write an object file in SunOS format. Section contents have |
| 214 | already been written. We write the file header, symbols, and |
| 215 | relocation. The real name of this function is either |
| 216 | aout_64_sunos4_write_object_contents or |
| 217 | aout_32_sunos4_write_object_contents, depending upon ARCH_SIZE. */ |
| 218 | |
| 219 | static bfd_boolean |
| 220 | sunos_write_object_contents (abfd) |
| 221 | bfd *abfd; |
| 222 | { |
| 223 | struct external_exec exec_bytes; |
| 224 | struct internal_exec *execp = exec_hdr (abfd); |
| 225 | |
| 226 | /* Magic number, maestro, please! */ |
| 227 | switch (bfd_get_arch (abfd)) |
| 228 | { |
| 229 | case bfd_arch_m68k: |
| 230 | switch (bfd_get_mach (abfd)) |
| 231 | { |
| 232 | case bfd_mach_m68000: |
| 233 | N_SET_MACHTYPE (*execp, M_UNKNOWN); |
| 234 | break; |
| 235 | case bfd_mach_m68010: |
| 236 | N_SET_MACHTYPE (*execp, M_68010); |
| 237 | break; |
| 238 | default: |
| 239 | case bfd_mach_m68020: |
| 240 | N_SET_MACHTYPE (*execp, M_68020); |
| 241 | break; |
| 242 | } |
| 243 | break; |
| 244 | case bfd_arch_sparc: |
| 245 | switch (bfd_get_mach (abfd)) |
| 246 | { |
| 247 | case bfd_mach_sparc_sparclet: |
| 248 | N_SET_MACHTYPE (*execp, M_SPARCLET); |
| 249 | break; |
| 250 | case bfd_mach_sparc_sparclite_le: |
| 251 | N_SET_MACHTYPE (*execp, M_SPARCLITE_LE); |
| 252 | break; |
| 253 | default: |
| 254 | N_SET_MACHTYPE (*execp, M_SPARC); |
| 255 | break; |
| 256 | } |
| 257 | break; |
| 258 | case bfd_arch_i386: |
| 259 | N_SET_MACHTYPE (*execp, M_386); |
| 260 | break; |
| 261 | case bfd_arch_a29k: |
| 262 | N_SET_MACHTYPE (*execp, M_29K); |
| 263 | break; |
| 264 | default: |
| 265 | N_SET_MACHTYPE (*execp, M_UNKNOWN); |
| 266 | } |
| 267 | |
| 268 | choose_reloc_size (abfd); |
| 269 | |
| 270 | N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags); |
| 271 | |
| 272 | N_SET_DYNAMIC (*execp, (long)(bfd_get_file_flags (abfd) & DYNAMIC)); |
| 273 | |
| 274 | WRITE_HEADERS (abfd, execp); |
| 275 | |
| 276 | return TRUE; |
| 277 | } |
| 278 | \f |
| 279 | /* core files */ |
| 280 | |
| 281 | #define CORE_MAGIC 0x080456 |
| 282 | #define CORE_NAMELEN 16 |
| 283 | |
| 284 | /* The core structure is taken from the Sun documentation. |
| 285 | Unfortunately, they don't document the FPA structure, or at least I |
| 286 | can't find it easily. Fortunately the core header contains its own |
| 287 | length. So this shouldn't cause problems, except for c_ucode, which |
| 288 | so far we don't use but is easy to find with a little arithmetic. */ |
| 289 | |
| 290 | /* But the reg structure can be gotten from the SPARC processor handbook. |
| 291 | This really should be in a GNU include file though so that gdb can use |
| 292 | the same info. */ |
| 293 | struct regs |
| 294 | { |
| 295 | int r_psr; |
| 296 | int r_pc; |
| 297 | int r_npc; |
| 298 | int r_y; |
| 299 | int r_g1; |
| 300 | int r_g2; |
| 301 | int r_g3; |
| 302 | int r_g4; |
| 303 | int r_g5; |
| 304 | int r_g6; |
| 305 | int r_g7; |
| 306 | int r_o0; |
| 307 | int r_o1; |
| 308 | int r_o2; |
| 309 | int r_o3; |
| 310 | int r_o4; |
| 311 | int r_o5; |
| 312 | int r_o6; |
| 313 | int r_o7; |
| 314 | }; |
| 315 | |
| 316 | /* Taken from Sun documentation: */ |
| 317 | |
| 318 | /* FIXME: It's worse than we expect. This struct contains TWO substructs |
| 319 | neither of whose size we know, WITH STUFF IN BETWEEN THEM! We can't |
| 320 | even portably access the stuff in between! */ |
| 321 | |
| 322 | struct external_sparc_core |
| 323 | { |
| 324 | int c_magic; /* Corefile magic number */ |
| 325 | int c_len; /* Sizeof (struct core) */ |
| 326 | #define SPARC_CORE_LEN 432 |
| 327 | int c_regs[19]; /* General purpose registers -- MACHDEP SIZE */ |
| 328 | struct external_exec c_aouthdr; /* A.out header */ |
| 329 | int c_signo; /* Killing signal, if any */ |
| 330 | int c_tsize; /* Text size (bytes) */ |
| 331 | int c_dsize; /* Data size (bytes) */ |
| 332 | int c_ssize; /* Stack size (bytes) */ |
| 333 | char c_cmdname[CORE_NAMELEN + 1]; /* Command name */ |
| 334 | double fp_stuff[1]; /* external FPU state (size unknown by us) */ |
| 335 | /* The type "double" is critical here, for alignment. |
| 336 | SunOS declares a struct here, but the struct's alignment |
| 337 | is double since it contains doubles. */ |
| 338 | int c_ucode; /* Exception no. from u_code */ |
| 339 | /* (this member is not accessible by name since we don't |
| 340 | portably know the size of fp_stuff.) */ |
| 341 | }; |
| 342 | |
| 343 | /* Core files generated by the BCP (the part of Solaris which allows |
| 344 | it to run SunOS4 a.out files). */ |
| 345 | struct external_solaris_bcp_core |
| 346 | { |
| 347 | int c_magic; /* Corefile magic number */ |
| 348 | int c_len; /* Sizeof (struct core) */ |
| 349 | #define SOLARIS_BCP_CORE_LEN 456 |
| 350 | int c_regs[19]; /* General purpose registers -- MACHDEP SIZE */ |
| 351 | int c_exdata_vp; /* exdata structure */ |
| 352 | int c_exdata_tsize; |
| 353 | int c_exdata_dsize; |
| 354 | int c_exdata_bsize; |
| 355 | int c_exdata_lsize; |
| 356 | int c_exdata_nshlibs; |
| 357 | short c_exdata_mach; |
| 358 | short c_exdata_mag; |
| 359 | int c_exdata_toffset; |
| 360 | int c_exdata_doffset; |
| 361 | int c_exdata_loffset; |
| 362 | int c_exdata_txtorg; |
| 363 | int c_exdata_datorg; |
| 364 | int c_exdata_entloc; |
| 365 | int c_signo; /* Killing signal, if any */ |
| 366 | int c_tsize; /* Text size (bytes) */ |
| 367 | int c_dsize; /* Data size (bytes) */ |
| 368 | int c_ssize; /* Stack size (bytes) */ |
| 369 | char c_cmdname[CORE_NAMELEN + 1]; /* Command name */ |
| 370 | double fp_stuff[1]; /* external FPU state (size unknown by us) */ |
| 371 | /* The type "double" is critical here, for alignment. |
| 372 | SunOS declares a struct here, but the struct's alignment |
| 373 | is double since it contains doubles. */ |
| 374 | int c_ucode; /* Exception no. from u_code */ |
| 375 | /* (this member is not accessible by name since we don't |
| 376 | portably know the size of fp_stuff.) */ |
| 377 | }; |
| 378 | |
| 379 | struct external_sun3_core |
| 380 | { |
| 381 | int c_magic; /* Corefile magic number */ |
| 382 | int c_len; /* Sizeof (struct core) */ |
| 383 | #define SUN3_CORE_LEN 826 /* As of SunOS 4.1.1 */ |
| 384 | int c_regs[18]; /* General purpose registers -- MACHDEP SIZE */ |
| 385 | struct external_exec c_aouthdr; /* A.out header */ |
| 386 | int c_signo; /* Killing signal, if any */ |
| 387 | int c_tsize; /* Text size (bytes) */ |
| 388 | int c_dsize; /* Data size (bytes) */ |
| 389 | int c_ssize; /* Stack size (bytes) */ |
| 390 | char c_cmdname[CORE_NAMELEN + 1]; /* Command name */ |
| 391 | double fp_stuff[1]; /* external FPU state (size unknown by us) */ |
| 392 | /* The type "double" is critical here, for alignment. |
| 393 | SunOS declares a struct here, but the struct's alignment |
| 394 | is double since it contains doubles. */ |
| 395 | int c_ucode; /* Exception no. from u_code */ |
| 396 | /* (this member is not accessible by name since we don't |
| 397 | portably know the size of fp_stuff.) */ |
| 398 | }; |
| 399 | |
| 400 | struct internal_sunos_core |
| 401 | { |
| 402 | int c_magic; /* Corefile magic number */ |
| 403 | int c_len; /* Sizeof (struct core) */ |
| 404 | long c_regs_pos; /* file offset of General purpose registers */ |
| 405 | int c_regs_size; /* size of General purpose registers */ |
| 406 | struct internal_exec c_aouthdr; /* A.out header */ |
| 407 | int c_signo; /* Killing signal, if any */ |
| 408 | int c_tsize; /* Text size (bytes) */ |
| 409 | int c_dsize; /* Data size (bytes) */ |
| 410 | bfd_vma c_data_addr; /* Data start (address) */ |
| 411 | int c_ssize; /* Stack size (bytes) */ |
| 412 | bfd_vma c_stacktop; /* Stack top (address) */ |
| 413 | char c_cmdname[CORE_NAMELEN + 1]; /* Command name */ |
| 414 | long fp_stuff_pos; /* file offset of external FPU state (regs) */ |
| 415 | int fp_stuff_size; /* Size of it */ |
| 416 | int c_ucode; /* Exception no. from u_code */ |
| 417 | }; |
| 418 | |
| 419 | static void swapcore_sun3 |
| 420 | PARAMS ((bfd *, char *, struct internal_sunos_core *)); |
| 421 | static void swapcore_sparc |
| 422 | PARAMS ((bfd *, char *, struct internal_sunos_core *)); |
| 423 | static void swapcore_solaris_bcp |
| 424 | PARAMS ((bfd *, char *, struct internal_sunos_core *)); |
| 425 | |
| 426 | /* byte-swap in the Sun-3 core structure */ |
| 427 | static void |
| 428 | swapcore_sun3 (abfd, ext, intcore) |
| 429 | bfd *abfd; |
| 430 | char *ext; |
| 431 | struct internal_sunos_core *intcore; |
| 432 | { |
| 433 | struct external_sun3_core *extcore = (struct external_sun3_core *) ext; |
| 434 | |
| 435 | intcore->c_magic = H_GET_32 (abfd, &extcore->c_magic); |
| 436 | intcore->c_len = H_GET_32 (abfd, &extcore->c_len); |
| 437 | intcore->c_regs_pos = (long) (((struct external_sun3_core *) 0)->c_regs); |
| 438 | intcore->c_regs_size = sizeof (extcore->c_regs); |
| 439 | #if ARCH_SIZE == 64 |
| 440 | aout_64_swap_exec_header_in |
| 441 | #else |
| 442 | aout_32_swap_exec_header_in |
| 443 | #endif |
| 444 | (abfd, &extcore->c_aouthdr, &intcore->c_aouthdr); |
| 445 | intcore->c_signo = H_GET_32 (abfd, &extcore->c_signo); |
| 446 | intcore->c_tsize = H_GET_32 (abfd, &extcore->c_tsize); |
| 447 | intcore->c_dsize = H_GET_32 (abfd, &extcore->c_dsize); |
| 448 | intcore->c_data_addr = N_DATADDR (intcore->c_aouthdr); |
| 449 | intcore->c_ssize = H_GET_32 (abfd, &extcore->c_ssize); |
| 450 | memcpy (intcore->c_cmdname, extcore->c_cmdname, sizeof (intcore->c_cmdname)); |
| 451 | intcore->fp_stuff_pos = (long) (((struct external_sun3_core *) 0)->fp_stuff); |
| 452 | /* FP stuff takes up whole rest of struct, except c_ucode. */ |
| 453 | intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) - |
| 454 | (file_ptr) (((struct external_sun3_core *) 0)->fp_stuff); |
| 455 | /* Ucode is the last thing in the struct -- just before the end */ |
| 456 | intcore->c_ucode = H_GET_32 (abfd, |
| 457 | (intcore->c_len |
| 458 | - sizeof (extcore->c_ucode) |
| 459 | + (unsigned char *) extcore)); |
| 460 | intcore->c_stacktop = 0x0E000000; /* By experimentation */ |
| 461 | } |
| 462 | |
| 463 | /* byte-swap in the Sparc core structure */ |
| 464 | static void |
| 465 | swapcore_sparc (abfd, ext, intcore) |
| 466 | bfd *abfd; |
| 467 | char *ext; |
| 468 | struct internal_sunos_core *intcore; |
| 469 | { |
| 470 | struct external_sparc_core *extcore = (struct external_sparc_core *) ext; |
| 471 | |
| 472 | intcore->c_magic = H_GET_32 (abfd, &extcore->c_magic); |
| 473 | intcore->c_len = H_GET_32 (abfd, &extcore->c_len); |
| 474 | intcore->c_regs_pos = (long) (((struct external_sparc_core *) 0)->c_regs); |
| 475 | intcore->c_regs_size = sizeof (extcore->c_regs); |
| 476 | #if ARCH_SIZE == 64 |
| 477 | aout_64_swap_exec_header_in |
| 478 | #else |
| 479 | aout_32_swap_exec_header_in |
| 480 | #endif |
| 481 | (abfd, &extcore->c_aouthdr, &intcore->c_aouthdr); |
| 482 | intcore->c_signo = H_GET_32 (abfd, &extcore->c_signo); |
| 483 | intcore->c_tsize = H_GET_32 (abfd, &extcore->c_tsize); |
| 484 | intcore->c_dsize = H_GET_32 (abfd, &extcore->c_dsize); |
| 485 | intcore->c_data_addr = N_DATADDR (intcore->c_aouthdr); |
| 486 | intcore->c_ssize = H_GET_32 (abfd, &extcore->c_ssize); |
| 487 | memcpy (intcore->c_cmdname, extcore->c_cmdname, sizeof (intcore->c_cmdname)); |
| 488 | intcore->fp_stuff_pos = (long) (((struct external_sparc_core *) 0)->fp_stuff); |
| 489 | /* FP stuff takes up whole rest of struct, except c_ucode. */ |
| 490 | intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) - |
| 491 | (file_ptr) (((struct external_sparc_core *) 0)->fp_stuff); |
| 492 | /* Ucode is the last thing in the struct -- just before the end */ |
| 493 | intcore->c_ucode = H_GET_32 (abfd, |
| 494 | (intcore->c_len |
| 495 | - sizeof (extcore->c_ucode) |
| 496 | + (unsigned char *) extcore)); |
| 497 | |
| 498 | /* Supposedly the user stack grows downward from the bottom of kernel memory. |
| 499 | Presuming that this remains true, this definition will work. */ |
| 500 | /* Now sun has provided us with another challenge. The value is different |
| 501 | for sparc2 and sparc10 (both running SunOS 4.1.3). We pick one or |
| 502 | the other based on the current value of the stack pointer. This |
| 503 | loses (a) if the stack pointer has been clobbered, or (b) if the stack |
| 504 | is larger than 128 megabytes. |
| 505 | |
| 506 | It's times like these you're glad they're switching to ELF. |
| 507 | |
| 508 | Note that using include files or nlist on /vmunix would be wrong, |
| 509 | because we want the value for this core file, no matter what kind of |
| 510 | machine we were compiled on or are running on. */ |
| 511 | #define SPARC_USRSTACK_SPARC2 ((bfd_vma)0xf8000000) |
| 512 | #define SPARC_USRSTACK_SPARC10 ((bfd_vma)0xf0000000) |
| 513 | { |
| 514 | bfd_vma sp = H_GET_32 (abfd, &((struct regs *) &extcore->c_regs[0])->r_o6); |
| 515 | if (sp < SPARC_USRSTACK_SPARC10) |
| 516 | intcore->c_stacktop = SPARC_USRSTACK_SPARC10; |
| 517 | else |
| 518 | intcore->c_stacktop = SPARC_USRSTACK_SPARC2; |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | /* byte-swap in the Solaris BCP core structure */ |
| 523 | static void |
| 524 | swapcore_solaris_bcp (abfd, ext, intcore) |
| 525 | bfd *abfd; |
| 526 | char *ext; |
| 527 | struct internal_sunos_core *intcore; |
| 528 | { |
| 529 | struct external_solaris_bcp_core *extcore = |
| 530 | (struct external_solaris_bcp_core *) ext; |
| 531 | |
| 532 | intcore->c_magic = H_GET_32 (abfd, &extcore->c_magic); |
| 533 | intcore->c_len = H_GET_32 (abfd, &extcore->c_len); |
| 534 | intcore->c_regs_pos = (long) (((struct external_solaris_bcp_core *) 0)->c_regs); |
| 535 | intcore->c_regs_size = sizeof (extcore->c_regs); |
| 536 | |
| 537 | /* The Solaris BCP exdata structure does not contain an a_syms field, |
| 538 | so we are unable to synthesize an internal exec header. |
| 539 | Luckily we are able to figure out the start address of the data section, |
| 540 | which is the only thing needed from the internal exec header, |
| 541 | from the exdata structure. |
| 542 | |
| 543 | As of Solaris 2.3, BCP core files for statically linked executables |
| 544 | are buggy. The exdata structure is not properly filled in, and |
| 545 | the data section is written from address zero instead of the data |
| 546 | start address. */ |
| 547 | memset ((PTR) &intcore->c_aouthdr, 0, sizeof (struct internal_exec)); |
| 548 | intcore->c_data_addr = H_GET_32 (abfd, &extcore->c_exdata_datorg); |
| 549 | intcore->c_signo = H_GET_32 (abfd, &extcore->c_signo); |
| 550 | intcore->c_tsize = H_GET_32 (abfd, &extcore->c_tsize); |
| 551 | intcore->c_dsize = H_GET_32 (abfd, &extcore->c_dsize); |
| 552 | intcore->c_ssize = H_GET_32 (abfd, &extcore->c_ssize); |
| 553 | memcpy (intcore->c_cmdname, extcore->c_cmdname, sizeof (intcore->c_cmdname)); |
| 554 | intcore->fp_stuff_pos = |
| 555 | (long) (((struct external_solaris_bcp_core *) 0)->fp_stuff); |
| 556 | /* FP stuff takes up whole rest of struct, except c_ucode. */ |
| 557 | intcore->fp_stuff_size = intcore->c_len - (sizeof extcore->c_ucode) - |
| 558 | (file_ptr) (((struct external_solaris_bcp_core *) 0)->fp_stuff); |
| 559 | /* Ucode is the last thing in the struct -- just before the end */ |
| 560 | intcore->c_ucode = H_GET_32 (abfd, |
| 561 | (intcore->c_len |
| 562 | - sizeof (extcore->c_ucode) |
| 563 | + (unsigned char *) extcore)); |
| 564 | |
| 565 | /* Supposedly the user stack grows downward from the bottom of kernel memory. |
| 566 | Presuming that this remains true, this definition will work. */ |
| 567 | /* Now sun has provided us with another challenge. The value is different |
| 568 | for sparc2 and sparc10 (both running SunOS 4.1.3). We pick one or |
| 569 | the other based on the current value of the stack pointer. This |
| 570 | loses (a) if the stack pointer has been clobbered, or (b) if the stack |
| 571 | is larger than 128 megabytes. |
| 572 | |
| 573 | It's times like these you're glad they're switching to ELF. |
| 574 | |
| 575 | Note that using include files or nlist on /vmunix would be wrong, |
| 576 | because we want the value for this core file, no matter what kind of |
| 577 | machine we were compiled on or are running on. */ |
| 578 | #define SPARC_USRSTACK_SPARC2 ((bfd_vma)0xf8000000) |
| 579 | #define SPARC_USRSTACK_SPARC10 ((bfd_vma)0xf0000000) |
| 580 | { |
| 581 | bfd_vma sp = H_GET_32 (abfd, &((struct regs *) &extcore->c_regs[0])->r_o6); |
| 582 | if (sp < SPARC_USRSTACK_SPARC10) |
| 583 | intcore->c_stacktop = SPARC_USRSTACK_SPARC10; |
| 584 | else |
| 585 | intcore->c_stacktop = SPARC_USRSTACK_SPARC2; |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | /* need this cast because ptr is really void * */ |
| 590 | #define core_hdr(bfd) ((bfd)->tdata.sun_core_data) |
| 591 | #define core_datasec(bfd) (core_hdr(bfd)->data_section) |
| 592 | #define core_stacksec(bfd) (core_hdr(bfd)->stack_section) |
| 593 | #define core_regsec(bfd) (core_hdr(bfd)->reg_section) |
| 594 | #define core_reg2sec(bfd) (core_hdr(bfd)->reg2_section) |
| 595 | |
| 596 | /* These are stored in the bfd's tdata */ |
| 597 | struct sun_core_struct |
| 598 | { |
| 599 | struct internal_sunos_core *hdr; /* core file header */ |
| 600 | asection *data_section; |
| 601 | asection *stack_section; |
| 602 | asection *reg_section; |
| 603 | asection *reg2_section; |
| 604 | }; |
| 605 | |
| 606 | static const bfd_target * |
| 607 | sunos4_core_file_p (abfd) |
| 608 | bfd *abfd; |
| 609 | { |
| 610 | unsigned char longbuf[4]; /* Raw bytes of various header fields */ |
| 611 | bfd_size_type core_size, amt; |
| 612 | unsigned long core_mag; |
| 613 | struct internal_sunos_core *core; |
| 614 | char *extcore; |
| 615 | struct mergem |
| 616 | { |
| 617 | struct sun_core_struct suncoredata; |
| 618 | struct internal_sunos_core internal_sunos_core; |
| 619 | char external_core[1]; |
| 620 | } *mergem; |
| 621 | |
| 622 | if (bfd_bread ((PTR) longbuf, (bfd_size_type) sizeof (longbuf), abfd) |
| 623 | != sizeof (longbuf)) |
| 624 | return 0; |
| 625 | core_mag = H_GET_32 (abfd, longbuf); |
| 626 | |
| 627 | if (core_mag != CORE_MAGIC) |
| 628 | return 0; |
| 629 | |
| 630 | /* SunOS core headers can vary in length; second word is size; */ |
| 631 | if (bfd_bread ((PTR) longbuf, (bfd_size_type) sizeof (longbuf), abfd) |
| 632 | != sizeof (longbuf)) |
| 633 | return 0; |
| 634 | core_size = H_GET_32 (abfd, longbuf); |
| 635 | /* Sanity check */ |
| 636 | if (core_size > 20000) |
| 637 | return 0; |
| 638 | |
| 639 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0) |
| 640 | return 0; |
| 641 | |
| 642 | amt = core_size + sizeof (struct mergem); |
| 643 | mergem = (struct mergem *) bfd_zalloc (abfd, amt); |
| 644 | if (mergem == NULL) |
| 645 | return 0; |
| 646 | |
| 647 | extcore = mergem->external_core; |
| 648 | |
| 649 | if ((bfd_bread ((PTR) extcore, core_size, abfd)) != core_size) |
| 650 | { |
| 651 | loser: |
| 652 | bfd_release (abfd, (char *) mergem); |
| 653 | abfd->tdata.any = NULL; |
| 654 | bfd_section_list_clear (abfd); |
| 655 | return 0; |
| 656 | } |
| 657 | |
| 658 | /* Validate that it's a core file we know how to handle, due to sun |
| 659 | botching the positioning of registers and other fields in a machine |
| 660 | dependent way. */ |
| 661 | core = &mergem->internal_sunos_core; |
| 662 | switch (core_size) |
| 663 | { |
| 664 | case SPARC_CORE_LEN: |
| 665 | swapcore_sparc (abfd, extcore, core); |
| 666 | break; |
| 667 | case SUN3_CORE_LEN: |
| 668 | swapcore_sun3 (abfd, extcore, core); |
| 669 | break; |
| 670 | case SOLARIS_BCP_CORE_LEN: |
| 671 | swapcore_solaris_bcp (abfd, extcore, core); |
| 672 | break; |
| 673 | default: |
| 674 | bfd_set_error (bfd_error_system_call); /* FIXME */ |
| 675 | goto loser; |
| 676 | } |
| 677 | |
| 678 | abfd->tdata.sun_core_data = &mergem->suncoredata; |
| 679 | abfd->tdata.sun_core_data->hdr = core; |
| 680 | |
| 681 | /* Create the sections. */ |
| 682 | core_stacksec (abfd) = bfd_make_section_anyway (abfd, ".stack"); |
| 683 | if (core_stacksec (abfd) == NULL) |
| 684 | /* bfd_release frees everything allocated after it's arg. */ |
| 685 | goto loser; |
| 686 | |
| 687 | core_datasec (abfd) = bfd_make_section_anyway (abfd, ".data"); |
| 688 | if (core_datasec (abfd) == NULL) |
| 689 | goto loser; |
| 690 | |
| 691 | core_regsec (abfd) = bfd_make_section_anyway (abfd, ".reg"); |
| 692 | if (core_regsec (abfd) == NULL) |
| 693 | goto loser; |
| 694 | |
| 695 | core_reg2sec (abfd) = bfd_make_section_anyway (abfd, ".reg2"); |
| 696 | if (core_reg2sec (abfd) == NULL) |
| 697 | goto loser; |
| 698 | |
| 699 | core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; |
| 700 | core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; |
| 701 | core_regsec (abfd)->flags = SEC_HAS_CONTENTS; |
| 702 | core_reg2sec (abfd)->flags = SEC_HAS_CONTENTS; |
| 703 | |
| 704 | core_stacksec (abfd)->size = core->c_ssize; |
| 705 | core_datasec (abfd)->size = core->c_dsize; |
| 706 | core_regsec (abfd)->size = core->c_regs_size; |
| 707 | core_reg2sec (abfd)->size = core->fp_stuff_size; |
| 708 | |
| 709 | core_stacksec (abfd)->vma = (core->c_stacktop - core->c_ssize); |
| 710 | core_datasec (abfd)->vma = core->c_data_addr; |
| 711 | core_regsec (abfd)->vma = 0; |
| 712 | core_reg2sec (abfd)->vma = 0; |
| 713 | |
| 714 | core_stacksec (abfd)->filepos = core->c_len + core->c_dsize; |
| 715 | core_datasec (abfd)->filepos = core->c_len; |
| 716 | /* We'll access the regs afresh in the core file, like any section: */ |
| 717 | core_regsec (abfd)->filepos = (file_ptr) core->c_regs_pos; |
| 718 | core_reg2sec (abfd)->filepos = (file_ptr) core->fp_stuff_pos; |
| 719 | |
| 720 | /* Align to word at least */ |
| 721 | core_stacksec (abfd)->alignment_power = 2; |
| 722 | core_datasec (abfd)->alignment_power = 2; |
| 723 | core_regsec (abfd)->alignment_power = 2; |
| 724 | core_reg2sec (abfd)->alignment_power = 2; |
| 725 | |
| 726 | return abfd->xvec; |
| 727 | } |
| 728 | |
| 729 | static char * |
| 730 | sunos4_core_file_failing_command (abfd) |
| 731 | bfd *abfd; |
| 732 | { |
| 733 | return core_hdr (abfd)->hdr->c_cmdname; |
| 734 | } |
| 735 | |
| 736 | static int |
| 737 | sunos4_core_file_failing_signal (abfd) |
| 738 | bfd *abfd; |
| 739 | { |
| 740 | return core_hdr (abfd)->hdr->c_signo; |
| 741 | } |
| 742 | |
| 743 | static bfd_boolean |
| 744 | sunos4_core_file_matches_executable_p (core_bfd, exec_bfd) |
| 745 | bfd *core_bfd; |
| 746 | bfd *exec_bfd; |
| 747 | { |
| 748 | if (core_bfd->xvec != exec_bfd->xvec) |
| 749 | { |
| 750 | bfd_set_error (bfd_error_system_call); |
| 751 | return FALSE; |
| 752 | } |
| 753 | |
| 754 | /* Solaris core files do not include an aouthdr. */ |
| 755 | if ((core_hdr (core_bfd)->hdr)->c_len == SOLARIS_BCP_CORE_LEN) |
| 756 | return TRUE; |
| 757 | |
| 758 | return (memcmp ((char *) &((core_hdr (core_bfd)->hdr)->c_aouthdr), |
| 759 | (char *) exec_hdr (exec_bfd), |
| 760 | sizeof (struct internal_exec)) == 0); |
| 761 | } |
| 762 | |
| 763 | #define MY_set_sizes sunos4_set_sizes |
| 764 | static bfd_boolean |
| 765 | sunos4_set_sizes (abfd) |
| 766 | bfd *abfd; |
| 767 | { |
| 768 | switch (bfd_get_arch (abfd)) |
| 769 | { |
| 770 | default: |
| 771 | return FALSE; |
| 772 | case bfd_arch_sparc: |
| 773 | adata (abfd).page_size = 0x2000; |
| 774 | adata (abfd).segment_size = 0x2000; |
| 775 | adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; |
| 776 | return TRUE; |
| 777 | case bfd_arch_m68k: |
| 778 | adata (abfd).page_size = 0x2000; |
| 779 | adata (abfd).segment_size = 0x20000; |
| 780 | adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; |
| 781 | return TRUE; |
| 782 | } |
| 783 | } |
| 784 | |
| 785 | /* We default to setting the toolversion field to 1, as is required by |
| 786 | SunOS. */ |
| 787 | #ifndef MY_exec_hdr_flags |
| 788 | #define MY_exec_hdr_flags 1 |
| 789 | #endif |
| 790 | |
| 791 | #ifndef MY_entry_is_text_address |
| 792 | #define MY_entry_is_text_address 0 |
| 793 | #endif |
| 794 | #ifndef MY_add_dynamic_symbols |
| 795 | #define MY_add_dynamic_symbols 0 |
| 796 | #endif |
| 797 | #ifndef MY_add_one_symbol |
| 798 | #define MY_add_one_symbol 0 |
| 799 | #endif |
| 800 | #ifndef MY_link_dynamic_object |
| 801 | #define MY_link_dynamic_object 0 |
| 802 | #endif |
| 803 | #ifndef MY_write_dynamic_symbol |
| 804 | #define MY_write_dynamic_symbol 0 |
| 805 | #endif |
| 806 | #ifndef MY_check_dynamic_reloc |
| 807 | #define MY_check_dynamic_reloc 0 |
| 808 | #endif |
| 809 | #ifndef MY_finish_dynamic_link |
| 810 | #define MY_finish_dynamic_link 0 |
| 811 | #endif |
| 812 | |
| 813 | static const struct aout_backend_data sunos4_aout_backend = |
| 814 | { |
| 815 | 0, /* zmagic files are not contiguous */ |
| 816 | 1, /* text includes header */ |
| 817 | MY_entry_is_text_address, |
| 818 | MY_exec_hdr_flags, |
| 819 | 0, /* default text vma */ |
| 820 | sunos4_set_sizes, |
| 821 | 0, /* header is counted in zmagic text */ |
| 822 | MY_add_dynamic_symbols, |
| 823 | MY_add_one_symbol, |
| 824 | MY_link_dynamic_object, |
| 825 | MY_write_dynamic_symbol, |
| 826 | MY_check_dynamic_reloc, |
| 827 | MY_finish_dynamic_link |
| 828 | }; |
| 829 | \f |
| 830 | #define MY_core_file_failing_command sunos4_core_file_failing_command |
| 831 | #define MY_core_file_failing_signal sunos4_core_file_failing_signal |
| 832 | #define MY_core_file_matches_executable_p sunos4_core_file_matches_executable_p |
| 833 | |
| 834 | #define MY_bfd_debug_info_start bfd_void |
| 835 | #define MY_bfd_debug_info_end bfd_void |
| 836 | #define MY_bfd_debug_info_accumulate \ |
| 837 | (void (*) PARAMS ((bfd *, struct bfd_section *))) bfd_void |
| 838 | #define MY_core_file_p sunos4_core_file_p |
| 839 | #define MY_write_object_contents NAME(aout,sunos4_write_object_contents) |
| 840 | #define MY_backend_data &sunos4_aout_backend |
| 841 | |
| 842 | #ifndef TARGET_IS_LITTLE_ENDIAN_P |
| 843 | #define TARGET_IS_BIG_ENDIAN_P |
| 844 | #endif |
| 845 | |
| 846 | #include "aout-target.h" |